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Registerer

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Sometimes you may want to use a string to identify a specific function or class. This is a common way of designing your code, but it can be tricky to do it without repeating yourself. Registerer is a tool that helps you to do this easily, and also makes sure that your code is explicit and type safe.

TLDR

Write this:

import registerer

command_handler_registry = registerer.Registerer()


@command_handler_registry.register()
def info(args):
    return "how can i help you?"


@command_handler_registry.register()
def play(args):
    return "let me play a song for you"


command = "info"
args = {}
assert command_handler_registry[command](args) == "how can i help you?"

Instead of this, which violates the Open-Closed Principle (OCP):

def info(args):
    return "how can i help you?"


def play(args):
    return "let me play a song for you"


def command_handler(command, args):
    if command == "info":
        return info(args)
    if command == "play":
        return play(args)


command = "play"
args = {}
assert command_handler(command, args) == "let me play a song for you"

Links

Installation

You can install the latest version of registerer from PyPI:

pip install registerer

Features

  • It's completely type-safe, thus you will get suggestions from your IDE.
  • Writing custom validations for registered items is provided without any inheritance.
  • generate choices for Django from registered items.
  • And so on...

Metadata

Release files for registerer 1.0.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for registerer 1.0.0
File Size Uploaded Provenance
registerer-1.0.0.tar.gz 5.5 kB With provenance Details

Built distribution (wheel)

Table of built distributions (wheels) for registerer 1.0.0
File Interpreter ABI Platform
registerer-1.0.0-py3-none-any.whl Python 3 none any Details

Total release size: 11.8 kB

Release files / registerer-1.0.0.tar.gz

Download URL registerer-1.0.0.tar.gz
Size 5.5 kB
Tags Source
SHA-256 checksum
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c810852e108a32412a05dbde26f6db183047bab41ee471cd3f121a669f75c500
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What is trusted publishing?
Yes
Uploaded via twine/6.1.0 CPython/3.13.7

Provenance

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PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Sep 15, 2025.

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Release files / registerer-1.0.0-py3-none-any.whl

Download URL registerer-1.0.0-py3-none-any.whl
Size 6.3 kB
Tags Python 3
SHA-256 checksum
How to use checksums
53d93ea5c8753ad9806bd1fc846a5eb3bc33131bce5823cf6ea6a80e0d09abf4
BLAKE2b-256 checksum
How to use checksums
51d0e124647adb09dd69294bb43d46b8fc449271b52216792ecdfebd3870bbd2
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
Yes
Uploaded via twine/6.1.0 CPython/3.13.7

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Sep 15, 2025.

Transparency log

Security for registerer 1.0.0

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

Full provenance

All 2 files in this release have been uploaded with provenance metadata.

Select from 2 files

Attestation for registerer-1.0.0.tar.gz

PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Sep 15, 2025.

Transparency log

A note on package security

PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.

To learn more about protecting yourself from malicious actors, visit our package security documentation.

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